/* @(#) $Id: init.c 8 2008-11-25 00:57:03Z mo@ilaven.net $ */

/*
 * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008 Mo McRoberts.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The names of the author(s) of this software may not be used to endorse
 *    or promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * AUTHORS OF THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include "p_libedi.h"

static int edi__init_complete;

#ifdef LIBEDI_USE_PTHREAD
static pthread_mutex_t edi__init_lock = PTHREAD_MUTEX_INITIALIZER;
#endif

int
edi__init(void)
{
	int r;
	
	r = 0;
#ifdef LIBEDI_USE_PTHREAD
	pthread_mutex_lock(&edi__init_lock);
#endif
	if(0 == edi__init_complete)
	{
		r = edi__detect_init();
	}
	edi__init_complete = 1;
#ifdef LIBEDI_USE_PTHREAD
	pthread_mutex_unlock(&edi__init_lock);
#endif
	return r;
}
